JTACEBUS. 



165 



ochraceous ; lateral margins ol' the mesoaotum somewhat loiigly 

 pilose : structural characters as in generic diagnosis. 



Length, c? and $ , 2 millim. 



Hah. Calcutta {Ind. Mus.). 



This species was found in tlie Calcutta tanks. 



Genus NACEBUS. 

 Nacebus, Dist. A. M. N. H. (8) v, p. Vrl (1910). 



Type, N. dux, Dist. 



Distribution. India and Burma. 



Body subelongate ; liead about as long as breadth between eyes, 

 the apex broad and subtruneate, the lateral apical angles distinctly 

 subprominent ; eyes inwardly somewhat rounded or roundly trun- 

 cate, not emarginate, not produced over the anterior margins of 



Fig. 90. — ]S'acchm dux. 



the proDotum ; antennae with the first and second joints stouter 

 than third and fourth joints, first joint about as long as head, 

 second shortest, only a little more than half the length of first, 

 third and fourth subequal in length, each a httle shorter than 

 first ; rostrum reaching the intermediate coxae ; pronotum very 

 short, almost appearing only as a broad anterior collar ; mesono- 

 tum three times as long as i)ronotum, the anterior and posterior 

 margins truncate, the lateral margins a little roundly oblique ; 

 abdomen (excludnig anal appendage) about as long as head and 

 pro- and mesonota together, the anal appendage long and slender ; 

 anterior legs moderately stout, the femora twice as long as the 



